diff --git a/grafana/block_verification.json b/grafana/block_verification.json
index 97dfda70244..f6950c23382 100644
--- a/grafana/block_verification.json
+++ b/grafana/block_verification.json
@@ -3,1072 +3,61 @@
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           "expr": "rate(gossip_downloaded_block_count{job=\"$job\"}[1s])",
           "interval": "",
           "legendFormat": "gossip_downloaded_block_count[1s]",
           "refId": "C"
         },
         {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "rpR76-qMz"
+          },
           "expr": "rate(gossip_verified_block_count{job=\"$job\"}[1s])",
           "interval": "",
           "legendFormat": "gossip_verified_block_count[1s]",
           "refId": "D"
         },
         {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "rpR76-qMz"
+          },
           "expr": "gossip_queued_block_count{job=\"$job\"}",
           "interval": "",
           "legendFormat": "gossip_queued_block_count",
@@ -1490,9 +443,7 @@
         }
       ],
       "thresholds": [],
-      "timeFrom": null,
       "timeRegions": [],
-      "timeShift": null,
       "title": "Block Gossip Count - $job",
       "tooltip": {
         "shared": true,
@@ -1501,9 +452,7 @@
       },
       "type": "graph",
       "xaxis": {
-        "buckets": null,
         "mode": "time",
-        "name": null,
         "show": true,
         "values": []
       },
@@ -1511,36 +460,28 @@
         {
           "$$hashKey": "object:252",
           "format": "short",
-          "label": null,
           "logBase": 1,
-          "max": null,
-          "min": null,
           "show": true
         },
         {
           "$$hashKey": "object:253",
           "format": "short",
-          "label": null,
           "logBase": 1,
-          "max": null,
-          "min": null,
           "show": true
         }
       ],
       "yaxis": {
-        "align": false,
-        "alignLevel": null
+        "align": false
       }
     }
   ],
-  "refresh": "5s",
-  "schemaVersion": 27,
+  "refresh": "1m",
+  "schemaVersion": 37,
   "style": "dark",
   "tags": [],
   "templating": {
     "list": [
       {
-        "allValue": null,
         "current": {
           "selected": true,
           "text": [
@@ -1550,13 +491,13 @@
             "$__all"
           ]
         },
-        "datasource": "Prometheus-Zebra",
+        "datasource": {
+          "type": "prometheus",
+          "uid": "rpR76-qMz"
+        },
         "definition": "label_values(zcash_chain_verified_block_height, job)",
-        "description": null,
-        "error": null,
         "hide": 0,
         "includeAll": true,
-        "label": null,
         "multi": true,
         "name": "job",
         "options": [],
@@ -1569,7 +510,6 @@
         "skipUrlSync": false,
         "sort": 1,
         "tagValuesQuery": "",
-        "tags": [],
         "tagsQuery": "",
         "type": "query",
         "useTags": false
@@ -1584,5 +524,6 @@
   "timezone": "",
   "title": "block verification",
   "uid": "rO_Cl5tGz",
-  "version": 14
+  "version": 18,
+  "weekStart": ""
 }
\ No newline at end of file
diff --git a/zebra-state/src/service.rs b/zebra-state/src/service.rs
index be1df4d7673..626b819d51f 100644
--- a/zebra-state/src/service.rs
+++ b/zebra-state/src/service.rs
@@ -183,8 +183,6 @@ pub(crate) struct StateService {
     ///
     /// Set to `f64::NAN` if `queued_finalized_blocks` is empty, because grafana shows NaNs
     /// as a break in the graph.
-    //
-    // TODO: add a similar metric for `queued_non_finalized_blocks`
     max_queued_finalized_height: f64,
 }
 
@@ -487,7 +485,7 @@ impl StateService {
 
         metrics::gauge!(
             "state.checkpoint.queued.max.height",
-            self.max_queued_finalized_height
+            self.max_queued_finalized_height,
         );
         metrics::gauge!(
             "state.checkpoint.queued.block.count",
@@ -527,6 +525,8 @@ impl StateService {
             .queued_finalized_blocks
             .remove(&self.last_sent_finalized_block_hash)
         {
+            let last_sent_finalized_block_height = queued_block.0.height;
+
             self.last_sent_finalized_block_hash = queued_block.0.hash;
 
             // If we've finished sending finalized blocks, ignore any repeated blocks.
@@ -545,6 +545,11 @@ impl StateService {
                     self.clear_finalized_block_queue(
                         "block commit task exited. Is Zebra shutting down?",
                     );
+                } else {
+                    metrics::gauge!(
+                        "state.checkpoint.sent.block.height",
+                        last_sent_finalized_block_height.0 as f64,
+                    );
                 };
             }
         }
diff --git a/zebra-state/src/service/queued_blocks.rs b/zebra-state/src/service/queued_blocks.rs
index 35cd3bbcd04..bacb532dc3f 100644
--- a/zebra-state/src/service/queued_blocks.rs
+++ b/zebra-state/src/service/queued_blocks.rs
@@ -2,7 +2,7 @@
 
 use std::{
     collections::{hash_map::Drain, BTreeMap, HashMap, HashSet, VecDeque},
-    mem,
+    iter, mem,
 };
 
 use tokio::sync::oneshot;
@@ -182,12 +182,19 @@ impl QueuedBlocks {
 
     /// Update metrics after the queue is modified
     fn update_metrics(&self) {
+        if let Some(min_height) = self.by_height.keys().next() {
+            metrics::gauge!("state.memory.queued.min.height", min_height.0 as f64);
+        } else {
+            // use f64::NAN as a sentinel value for "None", because 0 is a valid height
+            metrics::gauge!("state.memory.queued.min.height", f64::NAN);
+        }
         if let Some(max_height) = self.by_height.keys().next_back() {
             metrics::gauge!("state.memory.queued.max.height", max_height.0 as f64);
         } else {
             // use f64::NAN as a sentinel value for "None", because 0 is a valid height
             metrics::gauge!("state.memory.queued.max.height", f64::NAN);
         }
+
         metrics::gauge!("state.memory.queued.block.count", self.blocks.len() as f64);
     }
 
@@ -198,7 +205,9 @@ impl QueuedBlocks {
     }
 
     /// Clears known_utxos, by_parent, and by_height, then drains blocks.
-    /// Returns all key-value pairs of blocks as an iterator
+    /// Returns all key-value pairs of blocks as an iterator.
+    ///
+    /// Doesn't update the metrics, because it is only used when the state is being dropped.
     pub fn drain(&mut self) -> Drain<'_, block::Hash, QueuedNonFinalized> {
         self.known_utxos.clear();
         self.known_utxos.shrink_to_fit();
@@ -248,6 +257,8 @@ impl SentHashes {
 
         self.curr_buf.push_back((block.hash, block.height));
         self.sent.insert(block.hash, outpoints);
+
+        self.update_metrics_for_block(block.height);
     }
 
     /// Stores the finalized `block`'s hash, height, and UTXOs, so they can be used to check if a
@@ -271,6 +282,8 @@ impl SentHashes {
 
         self.curr_buf.push_back((block.hash, block.height));
         self.sent.insert(block.hash, outpoints);
+
+        self.update_metrics_for_block(block.height);
     }
 
     /// Try to look up this UTXO in any sent block.
@@ -315,10 +328,55 @@ impl SentHashes {
         });
 
         self.sent.shrink_to_fit();
+
+        self.update_metrics_for_cache();
     }
 
     /// Returns true if SentHashes contains the `hash`
     pub fn contains(&self, hash: &block::Hash) -> bool {
         self.sent.contains_key(hash)
     }
+
+    /// Update sent block metrics after a block is sent.
+    fn update_metrics_for_block(&self, height: block::Height) {
+        metrics::counter!("state.memory.sent.block.count", 1);
+        metrics::gauge!("state.memory.sent.block.height", height.0 as f64);
+
+        self.update_metrics_for_cache();
+    }
+
+    /// Update sent block cache metrics after the sent blocks are modified.
+    fn update_metrics_for_cache(&self) {
+        let batch_iter = || self.bufs.iter().chain(iter::once(&self.curr_buf));
+
+        if let Some(min_height) = batch_iter()
+            .flat_map(|batch| batch.front().map(|(_hash, height)| height))
+            .min()
+        {
+            metrics::gauge!("state.memory.sent.cache.min.height", min_height.0 as f64);
+        } else {
+            // use f64::NAN as a sentinel value for "None", because 0 is a valid height
+            metrics::gauge!("state.memory.sent.cache.min.height", f64::NAN);
+        }
+
+        if let Some(max_height) = batch_iter()
+            .flat_map(|batch| batch.back().map(|(_hash, height)| height))
+            .max()
+        {
+            metrics::gauge!("state.memory.sent.cache.max.height", max_height.0 as f64);
+        } else {
+            // use f64::NAN as a sentinel value for "None", because 0 is a valid height
+            metrics::gauge!("state.memory.sent.cache.max.height", f64::NAN);
+        }
+
+        metrics::gauge!(
+            "state.memory.sent.cache.block.count",
+            batch_iter().flatten().count() as f64,
+        );
+
+        metrics::gauge!(
+            "state.memory.sent.cache.batch.count",
+            batch_iter().count() as f64,
+        );
+    }
 }