diff --git a/chains/chaindata.go b/chains/chaindata.go
index e83cb65..9a11534 100644
--- a/chains/chaindata.go
+++ b/chains/chaindata.go
@@ -2,7 +2,6 @@ package chains
 
 import (
 	"errors"
-	"fmt"
 	"io"
 	"os"
 	"path/filepath"
@@ -33,7 +32,7 @@ func IsFixture(chain string) bool {
 
 // GetFixture returns the paths to the fixture chaindata for the given name.  This copies the
 // fixture data and returns paths to temp directories, due to the fact that Go modules are installed
-// read-only and Leveldb will attempt to create lock files when opening a DB.
+// read-only and Leveldb/Pebble will attempt to create lock files when opening a DB.
 func GetFixture(chain string) (*Paths, error) {
 	if !IsFixture(chain) {
 		return nil, errors.New("no fixture named " + chain)
diff --git a/chains/data/premerge1/geth/chaindata/CURRENT b/chains/data/premerge1/geth/chaindata/CURRENT
new file mode 100644
index 0000000..aa5bb8e
--- /dev/null
+++ b/chains/data/premerge1/geth/chaindata/CURRENT
@@ -0,0 +1 @@
+MANIFEST-000005
diff --git a/chains/data/premerge1/geth/chaindata/MANIFEST-000005 b/chains/data/premerge1/geth/chaindata/MANIFEST-000005
new file mode 100644
index 0000000..71a995b
Binary files /dev/null and b/chains/data/premerge1/geth/chaindata/MANIFEST-000005 differ
diff --git a/chains/data/premerge2/geth/chaindata/CURRENT b/chains/data/premerge2/geth/chaindata/CURRENT
new file mode 100644
index 0000000..cacca75
--- /dev/null
+++ b/chains/data/premerge2/geth/chaindata/CURRENT
@@ -0,0 +1 @@
+MANIFEST-000004
diff --git a/chains/data/premerge2/geth/chaindata/MANIFEST-000004 b/chains/data/premerge2/geth/chaindata/MANIFEST-000004
new file mode 100644
index 0000000..1d3ab0a
Binary files /dev/null and b/chains/data/premerge2/geth/chaindata/MANIFEST-000004 differ
diff --git a/chains/postmerge1/chain.go b/chains/postmerge1/chain.go
new file mode 100644
index 0000000..0462c05
--- /dev/null
+++ b/chains/postmerge1/chain.go
@@ -0,0 +1,18 @@
+// This fixture is the first using Pebble instead of Leveldb.  It was generated by a fixturenet
+// running geth 1.14.5 using a "merged from Genesis" configuration, as opposed to the previous
+// fixtures for which the Merge occurred at block 1.
+package postmerge1
+
+import (
+	"github.com/cerc-io/eth-testing/chains"
+)
+
+var (
+	ChainData, err = chains.GetFixture("postmerge1")
+)
+
+func init() {
+	if err != nil {
+		panic(err)
+	}
+}